Oil Can
The Oil Can is an item found in the Ruins after Gurglefin sets up his Oil Donkey. It is used to oil the various machines and robots in the area, which in turn grant access to new areas or give special treasures. Using the can on Clam-tron 4000 will activate him, allowing the player to progress to Crystal Eye Castle. If you use the can on the sheep they turn black for a while. There are 2 Winged Sapphires you can get by using it. One of the Winged Sapphires is inside of the train by Diggs when you oil it, and the other one is in a hidden room accessed by using it on the robot with the top hat next to the door shaped like a gear; upon being oiled, he will crank the lever his arm is attached to, moving the gears and opening the gear door, revealing the room with the winged sapphire.